National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Manchester Airport (KMHT)

Lat: 42.93°NLon: 71.44°WElev: 223ft.

A Few Clouds

38°F

3°C

Humidity 83%
Wind Speed Calm
Barometer 29.99 in (1017.2 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Last update 9 Mar 8:53 am EDT
Extended Forecast for

Merrimack NH

  • Today

    Today: Mostly sunny, with a high near 67. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 67 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 33. Southwest wind around 5 mph.

    Low: 33 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.

    High: 71 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. Calm wind.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 50 percent chance of rain after 8am. Cloudy, with a high near 54. Light east wind becoming southeast 5 to 10 mph in the morning.

    High: 54 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 2am. Cloudy, with a low around 42. Chance of precipitation is 70%.

    Low: 42 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely before 5pm, then a chance of rain and snow. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.

    High: 56 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A 30 percent chance of snow before 10pm. Partly cloudy, with a low around 24.

    Low: 24 °F

    Chance Snow
    then Mostly
    Clear

  • Friday

    Friday: Partly sunny, with a high near 44.

    High: 44 °F

    Partly Sunny

Detailed Forecast

Today
Mostly sunny, with a high near 67. Light south wind becoming southwest 5 to 10 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Mostly clear, with a low around 33. Southwest wind around 5 mph.
Tuesday
Sunny, with a high near 71. Calm wind becoming south around 5 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 39. Calm wind.
Wednesday
A 50 percent chance of rain after 8am. Cloudy, with a high near 54. Light east wind becoming southeast 5 to 10 mph in the morning.
Wednesday Night
Rain likely, mainly before 2am. Cloudy, with a low around 42. Chance of precipitation is 70%.
Thursday
Rain likely before 5pm, then a chance of rain and snow. Mostly cloudy, with a high near 56. Chance of precipitation is 60%.
Thursday Night
A 30 percent chance of snow before 10pm. Partly cloudy, with a low around 24.
Friday
Partly sunny, with a high near 44.
Friday Night
Snow likely, possibly mixed with rain, becoming all snow after 5am. Mostly cloudy, with a low around 29. Chance of precipitation is 60%.
Saturday
A 40 percent chance of snow. Mostly cloudy, with a high near 46.
Saturday Night
Partly cloudy, with a low around 24.
Sunday
A chance of rain and snow. Mostly cloudy, with a high near 46. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Merrimack NH
 42.86°N 71.49°W (Elev. 118 ft)
Last Update:
6:51 am EDT Mar 9, 2026
Forecast Valid:
9am EDT Mar 9, 2026-6pm EDT Mar 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation